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Colonoscopy and Left-Sided Colorectal Cancer

David H. Ilson

Abstract

Colorectal cancer (CRC) is the third most common cancer and the second leading cause of cancer-related deaths in North America. Screening programs for early CRC detection — including rectal exam with fecal occult blood testing, sigmoidoscopy, colonoscopy, and, more recently, computed tomography colonography (JW Oncol Hematol Sep 17 2008) — appear to have lowered CRC mortality. However, …

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Key concepts: Medicine, Sigmoidoscopy, Colonoscopy, Colorectal cancer, Fecal occult blood, Colorectal cancer screening, Internal medicine, Occult